TRUE
FALSE
✅ The correct answer is option B.
Mechanical Engineering MCQs
The moment of inertia of a thin disc of mass m and radius r, about an axis through its centre of gravity and perpendicular to the plane of the disc is
mr2/2
mr2/4
mr2/6
mr2/8
✅ The correct answer is option A.
The negative terminal post on the top of a battery is
smaller than the positive terminal post
larger than the positive terminal post
of the same size as the positive terminal post
none of these
✅ The correct answer is option A.
Air motors work on the cycle which is the reverse of the reciprocating air compressor cycle.
Agree
Disagree
✅ The correct answer is option A.
One m3 of methane (CH4) requires 2m3 of oxygen and produces 1m3 of carbon dioxide and 2m3 of water or steam.
Correct
Incorrect
✅ The correct answer is option A.
In cylindrical cams, the follower moves
in a direction perpendicular to the cam axis
in a direction parallel to the cam axis
in any direction irrespective of cam axis
along the cam axis
✅ The correct answer is option B.
The unit speed of the turbine runner is
✅ The correct answer is option A.
For 450 m head of water, __________ shallbeused.
Pelton wheel
Kaplan turbine
Francis turbine
none of these
✅ The correct answer is option A.
According to Euler’s column theory, the crippling load of a column is given by p = π2 EI/Cl2 In this equation, the value of C for a column with both ends hinged, is
1-Apr
1-Feb
1
2
✅ The correct answer is option C.